First, you need to know how to enter:-
http://ricehigh.blogspot.com/2009/08/new-method-to-access-debug-modes-of.html
And, here is the Debug Mode Menu, Sub-menus and Functional Items:-
http://www.youtube.com/watch?v=xRpPBCa1rMU
(in English)
Next, here is the Additional SETUP Sub-menu and Items:-
http://www.youtube.com/watch?v=nrWieDnm5oE
(in Japanese)
Disclaimer/Reminder: Play all those at YOUR OWN RISK! YOU are the ONE WHO know what you are doing actually and special care and attention must be paid IF YOU PLAY!!